Held Before Acquisition/ Disposition 2 % Group of Held Acquisition/ Disposition 2 % Group of Held After Acquisition/ Disposition 2 Remark 3 File No VIBHA Mrs. Yada Putthkayon Disposition Convertible

Held Before Acquisition/ Disposition 2 % Group of Held Acquisition/ Disposition 2 % Group of Held After Acquisition/ Disposition 2 Remark 3 File No CEN Mr. chinchana leenabunjong Acquisition Convertible

Acquisition Convertible securities 3.072 8.661 11.733 13/12/2021 3.072 8.661 11.733   246015122112-1 RWI CAPITAL ENGINEERING NETWORK PUBLIC COMPANY LIMITED Disposition Stock 65.006 0.4194 64.5865 08/12/2021

Held Before Acquisition/ Disposition 2 % Group of Held Acquisition/ Disposition 2 % Group of Held After Acquisition/ Disposition 2 Remark 3 File No INSET Mr. BOONSMIT PUKHANASUT Acquisition Convertible

Convertible securities 0 3.7404 3.7404 14/12/2022 0 3.7404 3.7404 The acquirer will make a tender offer. 246022152212-1 IND Doctor Chainarong Na lamphun Acquisition Stock 29.4114 1.1428 30.5542 14/12/2022

Disposition Stock 16.474 8.2287 8.2452 06/10/2021 16.474 8.2287 8.2452   246013832110-1 MVP Mr. VICHAI SERMTHAVISUB Acquisition Convertible securities 0.7 4.5 5.2 22/07/2021 0.7 4.5 5.2   246012402107-1 Stock

PARTNERS PTE., LTD. Disposition Convertible securities 8.5899 8.5899 0 22/02/2021 8.5899 8.5899 0   246009032102-1 7UP ADVANCE CAPITAL PARTNERS PTE., LTD. Acquisition Convertible securities 0.8729 8.5243

Thai Technician Professional Company Limited's offering foe sale newly issued securities in the category of convertible debentures without approval from the SEC Office which is breach of The

paid-up shares of SGAH at the total value of USD 50.00 million or equivalent to approximately Baht 1,761.00 million and (2) grant of a synthetic convertible loan by the Company to SGAH at the amount of

Directions for the Development of the Thai Capital Market.” On this occasion, SEC Chairman, Dr. Pichit Akrathit, presented the objectives of the event, followed by the opening speech of SEC Secretary